HD64F2168 Datasheet, PDF (588/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

16.3.15 SMIC Control Status Register (SMICCSR)
SMICCSR is one of the registers used to implement SMIC mode. This is an 8-bit
readable/writable register that stores a control code issued from the host and a status code that is
returned from the slave.
The control code is written to this register accompanied by the transfer between the host and slave.
The status code is returned to this register to indicate that the slave has recognized the control
code, and a specified transfer cycle has been completed.
16.3.16 SMIC Data Register (SMICDTR)
SMICDTR is one of the registers used to implement SMIC mode. This is an 8-bit register that is
accessible (readable/writable) from both the slave processor (this LSI) and host processor. This is
used for data transfer between the host and slave.
16.3.17 SMIC Interrupt Register 0 (SMICIR0)
SMICIR0 is one of the registers used to implement SMIC mode. This register includes the bits that
indicate the source of interrupt to the slave.
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